Suitable for repairing small scratches; Before using it please shake the pen for at least 40 times so that coating at the bottom is well-mixed; Apply the paint to the scratched place every 5 minute till the paint protrudes the surface; 2~3 days later (protect the painted place from water) use 2000# / 3000# abrasive paper (soften it by soaking it in soap suds for 20~30 min) to polish the painted place to the same level of the surface; Keep bottle tightly closed store in a cool dry place at temperatures below 45 centigrade out of reach of children.